UCFS, Reflection/Metadata, Overload Resolution, Templates, and other issues

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Thanks for the link!

I tried compiling the file, and I got these errors:

variant.d(454): Warning: statement is not reachable
variant.d(454): Warning: statement is not reachable
variant.d(454): Warning: statement is not reachable
variant.d(634): Warning: statement is not reachable
variant.d(660): Warning: statement is not reachable
variant.d(337): Error: template variant.Variant.Box.opAssign(A : Variant) does not match any function template declaration
variant.d(337): Error: template variant.Variant.Box.opAssign(A : Variant) cannot deduce template function from argument types !
()(char[])
variant.d(612): Error: template instance variant.Variant.Box.opAssign!(char[]) error instantiating
variant.d(1041): instantiated from here: __vtableOf!(char[])
variant.d(605): instantiated from here: opAssign!(char[])
variant.d(757): instantiated from here: SaveResult!(char[])
    ... (23 instantiations, -v to show) ...
variant.d(376): instantiated from here: SaveResult!(TypeInfo)
variant.d(351): instantiated from here: __vtableOf!(void)

Any ideas how I should fix them?